Determine the accepted molecular weight of benzcic acid from its formula, C5H5COOH. Calculate the percent discrepancy between the experimental and...
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4. Determine the accepted molecular weight of benzcic acid from its formula, C5H5COOH. 5. Calculate the percent discrepancy between the experimental and accepted values. Experimental value — Accepted Value| % error = Accepted Value x 100

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TRAIL 1
TRAIL 2
Mass of lauric acid (8)
8g
8.023g
Mass of benzoic acid (g)
1.03g
1.07g
Freezing point of pure lauric
43.6.C
45.55.C
acid (C)
Freezing point of benzoic
38.5 C
40.44.C
acid-lauric acid mixture (C)
AT (freezing point
5.1'C
5.11'C
depression) ("C)
DATA ANALYSIS
1. Calculate molality (m), in mol/kg, using the formula AT= -ikfx m.
2. Calculate moles of benzoic acid solute, using the molality and the mass (in kg) of lauric acid
solvent.
3. Calculate the experimental molecular weight of benzoic acid, in g/mol.

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